Use the View General Details panel in the SAN Volume Controller
Console to display information, like name and worldwide node name,
for a selected disk controller system.
Attributes
The
following attributes are displayed in the table:
- Name
- Displays the name of the disk controller system.
- Worldwide Node Name (WWNN)
- Displays the worldwide node name.
- Managed Disk Link Count
- Displays the number of managed disks (MDisks) currently
using this controller as their active controller.
- Degraded
- Indicates that the number of fabric logins to the controller that
is less than the maximum previously recorded for any given SAN Volume Controller cluster
node and controller port combination.
Note: Individual MDisks can
be in the degraded state but the associated disk controller systems
are not in this state.
- Vendor ID
- Displays the identifier for the vendor of the disk controller
system. For example, the identifier for the SAN Volume Controller is IBM.
- Product ID Low
- Displays one of the product identifiers for the disk controller
system. This number is provided by the manufacturer. For example,
the identifier for the FASsT hardware controller is 1742.
- Product ID High
- Displays one of the product identifiers for the disk controller
system. This number is provided by the manufacturer.
- Product Revision
- Displays one of the product identifiers for the disk controller
system. This number is provided by the manufacturer. This field generally
contains the licensed internal software level or hardware level.
- Product Serial Number
- Displays the serial number of the disk controller system. This
number is provided by the manufacturer.
- Allow Quorum
- Displays whether the selected disk controller system is allowed
to host quorum disks. A managed disk (MDisk) that contains quorum
data is a quorum disk. A cluster uses a quorum disk to break a tie
and achieve a quorum. The cluster automatically chooses three MDisks
as quorum disk candidates. Each disk is assigned an index number,
either 0, 1, or 2.
Note: Although a cluster can be configured to use
up to three quorum disks, only one quorum disk is elected to resolve
a tie-break situation. The purpose of the other quorum disks is to
provide redundancy if a quorum disk fails prior to the cluster being
partitioned.
The following values are possible:
- False
- Indicates that the disk controller does not allow a quorum setting
for disks that it controls.
- True
- Indicates that the disk controller allows quorum setting for disks
that it controls.
Before allowing quorum disks on any disk controller
by using the svctask chcontroller -allowquorum yes command,
check the following Web site to see whether the controller supports
quorum:
Support for SAN Volume Controller (2145)
Web site
Actions
The
following action is available:
- Close
- Click this button to exit this panel.